PRESSURE LEAF FILTERS

Transcription

1 UNYVER PRESSURE LEAF FILTERS

2 VERTICAL PRESSURE LEAF FILTER TYPE " F F V " Vertical leaf filters are recommended for the filtration of liquids with medium or low content of solids and where the removal of solids has to be automatically operated. Filter leaves are vertically mounted and kept parallel due to spacers. The filtrate is collected by the manifold which supports the leaves. The cake is discharged through a large drain nozzle. It is possible dry cake discharge by vibrator after cake squeezing with air, nitrogen or steam. Options: Quick opening closure bayonet type Slurry slide valve manual or motorized Jacket for circulation of steam, hot water or refrigerating fluid Electrical or pneumatic vibrator device to provide easier cake discharge Sprayer nozzles systems for wet cake discharge The photo shows a vertical leaf filter designed for 40 bar operating pressure, utilized in the pre-coat filtration of MEA. Leaves blockage system is provided to allow cake discharge by vibrations. Type Filtering area m 2 Cake Volume () A with S = 25 mm Filter Volume It Height Dimensions (mm) Floor Space FFV , x 550 FFV , x 750 FFV x 850 FFV , x 950 FFV , x 1150 FFV , x 1400 FFV x 1650 FFV x 1800 A For standard configuration the pitch between leaves is 75 mm.

3 TYPE "FF0 HORIZONTAL PRESSURE LEAF FILTER Horizontal arrangement is recommended for the filtration of liquids with relative high solid content. The filter leaves are vertically mounted and kept parallel due to special spacers. The filtrate is collected by a manifold which supports the leaves. Cake discharge can be done in wet condition with filter closed or in dry condition with filter opened after drying of cake by air, nitrogen or steam. The filters leaves are mounted vertically on an internal carriage, which allows easy removal for cleaning and maintenance, also thanks to support device for filter package extraction. Options: Quick opening closure bayonet type Jacket for steam circulation, hot water or refrigerating fluid Hydraulic device for opening and closure operations Hydraulic device for filter package extraction Pneumatic or electric vibrator device, for easy cake removal Sprayer nozzles system for cake wet discharge Type Filtering area M 2 Leaves Pitch 75 mm Cake S = 25 mm. Vessel Cake S = 40 mm. Leaves Pitch 100 mm Vessel Height Dimensions mm Floor space FF , x 2150 FF x 3200 FF , x 3150 FF , x 3750 FF x 4700 FFO , x 4000 FF x 4600 FF x 5200 FFO x 6250 FFO , x 6900 FFO x 7650 FFO x 8250 Photo at the left shows an horizontal leaf filter; the extraction of leaves package as well as the opening of bayonet quick closure is hydraulically done.

4 THE FILTER ELEMENT The filter leaf is manufactured with a drainage member which supports on both side the AISI 316 stainless steel mesh. All these metallic layers are connected and sealed to a periphelical tubolar frame which conveyes the filtered liquid to discharge nozzle. For particular applications, filters leaves are covered with cloth made with natural or syntetic fibers. The filter leaves can be made with special materials (Titanium, PVC, Polypropylene, PVDF) when AISI 316 is not suitable. Individual outlet nozzle is equipped with O-Ring gasket available in different materials and selected according to filtered liquid. APPLICATIONS Direct filtration of liquids with high solids content (not colloidal) Pre-Coat filtration of liquids with high fine solid content (colloidal or non colloidal nature) utilizing diatomaceous earth Polishing of liquids with low and high viscosity, Catalyst recovery FEATURES Low operating cost. Automatic operation allows the filtration of hazardous and volatile liquids Short time for cake formation due to unique manufacture of leaves which guarantee high effective filtration area and no leakages between frame and meshes Automatic operation is providing opening, cake discharge and closing of the filter ADVANTAGES OF UNYVER FILTER Better environmental conditions in the filtration of hazardous and volatile liquids thanks to fully automated operation All manual handling is eliminated High flow rate High filtration area compared to overall dimensions of filter

5 BEA STRENGTHENING THE SERVICE TO THE CUSTOMER BEA Technologies is offering the support of filtration experts to assist the customers in studying problems and applications. BEA's experts are supported by SLB (Internal Laboratory Service) which is equipped of most recent and up-to-date instruments. Each new application is carefully studied with an experimental Method according to this scheme: Filterability test and choice of eventual filter-aids type. Analysis of filtrate or recovered contaminant. Determination of filtration velocity parameters. BEA can take pilot plants to the customer's sites, in order to run trial tests when laboratory tests are not sufficient to define completely the application.

6 WHERE UNYVER FILTERS ARE USED UNYVER leaf filter is so versatile that it finds utilization in many industrial applications. Naturally the manufacturing, the internal and external surface finishing as well as the accessories to be mounted on, are selected in order to meet all the requirements that the relevant type of industry asks for. The housing, standard or designed according to several manufacturing codes, can be made with carbon steel, rubber lined, stainless steel 316L or special alloys. CHEMICAL AND PETROCHEMICAL INDUSTRY Downstream the plants for depuration and decoulorisation of mineral oils Full stream or side stream filtration of MEA, DEA Downstream the plants for depuration of plastificizers, resins, melted sulphur Catalyst recovery Separation and eventual recovery of high s of solids FOOD INDUSTRY Downstream the plants for decoulorisation and deodorization of edible oils and animal fats "Winterization" of seed oils and husk oils Filtration of syrups, honey, fruit juices, wines and beer VARIES Recovery of hard metal fine dust from coolants Separation of meat flour Filtration of silicates DS-FFV-686-UK-11 Data contained in this bulletin are informative and subject to change without notice. User is responsible for determining whether the product is fit for particular purpose and suitable for User s method of application.